YQZYKL can adjusted SIgA content in succus gastricus of spleen deficiency rats, as well as gastrointestinal mucous immunYQZYKL对脾虚SD大鼠胃液内SIgA含量有明显调节作用，对脾虚胃肠粘膜免疫功能紊乱有明显调节作用。